Improvement in pumps



'A7/@wg 3N. PETERS. PHOTD-UTHUGRAFHER. WASHINGTON D C y UNITED STATES PATENT OFFICEO HENRY RosEN, or ELKHAET, INDIANA.

IMPROVEMENT IN PUMPS.

Specification forming part ot' Letters Patent No. 38,416, dated May 5, 1863.

To all whom it may concern,.-

Be it known that I, HENRY RosEN, of Elkhart, Elkhart county, State of Indiana, have invented an Improvement in Pumps; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention consists in operating the buckets of two pump-barrels from a crankshaft through the medium ofrods and arms, arranged and operating in the manner described hereinafter, so that the force required to turn the crankshaft may be comparatively uniform throughout its revolution.

In order to enable others skilled in the art to make and use my invention7 I will now proceed to describeits construction and operation.

On reference to the accompanying drawings, which form a part of this speciiication, Figure I is a vertical section of a double-barreled pump with my improvement, and Fig. 2 a plan view.

A and Al represent the two barrels of the pump, each having the usual valved bucket a, the bucket ofthe barrel A being connected to the rod B, and the bucket of the barrel A' to the rod B', the latter rod being jointed to the outer end of the arm D' and the rod B to the outer end of a similar arm, D. Both arms are arranged to vibrate independently of each other on a pin, e, situated midway between the two barrels and attached to plates G, one of which is secured to each of the boards or plates H and H', which serve to connect the two barrels of the pump together. Below the pin e and, like the latter, situated midway between the two barrels, is a shaft, I, which turns in the opposite plates H and H', and on this shaft is formed a crank, i, which is connected to the outer end of the arm D by a rod, K, and to the outer end of the arm D' by a rod, K'. Each barrel is furnished with a spout, m, through which the water is discharged onto the inclined spout N, the latter being situated between and secured to the two barrels. It will be understood that the barrels are furnished A at the bottom with the suction or foot valves common to ordinary pumps. On turning the shaft I in either direction a vibrating motion will be imparted to the two arms D and D', and consequently thepump-buckets must have the desired reciprocating motion. If the buckets were connected to an ordinary beam, and a vibrating motion was communicated to the beam through the medium of al crank, one bucket would reach the limit of its upward movement simultaneously with the arrival of the other bucket at the limit ot its downward movement, the motion of both buckets would be reversed simultaneously, and at the moment this reversal took place an eXtra force would be required to move the beam. The power required to turn the crank would therefore be different at different points in its revolution.

In my improvement, however, the crankshaft is so situated in respect to the independent arms D and D' and to the rods B and B that the two buckets never arrive at the limit of their movements simultaneously, one bucket being in the act of ascending or descending at the time the motion of the other bucket is being reversed. Hence the power required to revolve the crank-shaft will be comparatively uniform throughout its revolution.

I claim as my invention and desire to secure by Letters Patent- Driving the buckets of the two barrels A and A' from a crank-shaft, I,.through the medium of the rods K and K', arms D and D', and rods B and B', the whole being arranged and operating as and for the purpose herein set forth.

In testimony whereof I have signed my name to this speciiication in the presence of two subscribing witnesses.

HENRY ROSEN.v

Witnesses L. A. ELLIOT, AARON ZELLERs. 

